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Finding the Fourth Proportional to 69,940.98, 105,002.92 and 41,529.78

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Solution

The fourth proportional to 69,940.98, 105,002.92 and 41,529.78 is: 62,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,940.98 : 105,002.92 = 41,529.78 : x
  2. Step 2: Convert to fraction form
    69,940.98/105,002.92 = 41,529.78/x
  3. Step 3: Cross multiply
    69,940.98x = 105,002.92 × 41,529.78
  4. Step 4: Simplify right side
    69,940.98x = 4,360,748,166.96
  5. Step 5: Solve for x
    x = 4,360,748,166.96/69,940.98
  6. Step 6: Final answer
    x = 62,348.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.